Ecology 1
The variable in an experiment that is measured and goes on the Y-axis is called the____ variable.
dependent
Study of the interactions between organisms and their environment is known as?
ecology
. Organisms affect each other and their environment; this makes them___?
interdependent
Living parts of the environment are known as____factors.
biotic
Non-living parts of the environment are known as____factors.
abiotic
is bacteria biotic?
yes
is sunlight, tempurature and soil biotic?
no
A ____ is a place where an organism lives.
habitat
A squirrel’s____is gathering acorns. (hint: its a role that an organism plays in its environment)
niche
The____is the part of Earth in which life exists, including land, water, and air
biosphere
what are the three types of population distribution (hint: c.u.r)
clumped uniform random
______ ______ is the number of organisms per unit area at a given time.
(hint: p.d)
population density
_____ ______ ___ is the amount by which a population size changes over time. (hint: p.g.r)
population growth rate
Predation occurs when the___gets eaten by the _______. (just say both words)
prey predator
Predator and prey populations ___ and ___ together. (include the and)
rise and fall
______ is when organisms are fighting over limited resources, mates, or territory.
competition
One reason populations cannot grow indefinitely is because of ____ resources (e.g., food, space).
limited
______ _______ is the maximum number of organisms the resources of an area can support.
carrying capacity
In the presence of UNLIMITED RESOURCES and ABESENSE of DISEASE and PREDATION, a rabbit population will show ________ growth?
exponential
A population has grown to its ____ _____ if further growth would mean that the population cannot be supported by the environment’s resources.
carrying capacity
____ _____ are any biotic or abiotic factor that RESTRAINS the growth of a population.
limiting factors
what shape is carrying cappacity on a graph?
s
exponential growth is straight up and has a _ shape.
j
predation, competition, and disease are examples of a ____ _____ factor.
density dependent
natural disasters, and weather are _____ ______ factors.
density independent
Demographics are ______ characteristics of a given human population. (starts with an S)
statistical
Demographers use mathematical formulas to predict or study _____ _____.
population changes
A Population Pyramid is a graph that shows the distribution of various age groups by____ in a population.
gender
demographers use mathematical formulas to predict or study ______ ______. (a sort of change)
population changes
A model that shows birth and death rates as a country develops is known as a _______ ________ model.
demographic transition
Requirements for successful sampling include a _____ ______ size.
large sample
Humans having different skin colors is an example of ______ diversity.
genetic
______ diversity is the number or variety of species in an ecosystem.
species
_________ diversity is the number and variety of ecosystems within a specified area.
ecosystem
The three components driving biodiversity are:
genetic, species, and ecosystem
what is ticks feeding on a dog and example of?
parasitism
what is bees transporting pollen an example of?
mutualism
what is a pilot fish swimming under sharks an example of?
commensalism
what is birds eating the ticks off a hippo an example of?
mutualism